<template>
    <div class="header">
        <!-- 折叠按钮 -->
        <div class="collapse-btn" @click="collapseChage">
            <i v-if="!collapse" class="el-icon-s-fold"></i>
            <i v-else class="el-icon-s-unfold"></i>
        </div>
        <div class="logo">后台管理系统</div>
        <div class="header-right">
            <div class="header-user-con">
                <!-- 全屏显示 -->
                <div class="btn-fullscreen" @click="handleFullScreen">
                    <el-tooltip effect="dark" :content="fullscreen?`取消全屏`:`全屏`" placement="bottom">
                        <i class="el-icon-rank"></i>
                    </el-tooltip>
                </div>
                <!-- 消息中心 -->
                <!--                <div class="btn-bell">-->
                <!--                    <el-tooltip-->
                <!--                        effect="dark"-->
                <!--                        :content="message?`有${message}条未读消息`:`消息中心`"-->
                <!--                        placement="bottom"-->
                <!--                    >-->
                <!--                        <router-link to="/tabs">-->
                <!--                            <i class="el-icon-bell"></i>-->
                <!--                        </router-link>-->
                <!--                    </el-tooltip>-->
                <!--                    <span class="btn-bell-badge" v-if="message"></span>-->
                <!--                </div>-->
                <!-- 用户头像 -->
                <div class="user-avator">
                    <img :src="JSON.parse(user).headImg"/>
                </div>
                <!-- 用户名下拉菜单 -->
                <el-dropdown class="user-name" trigger="click" @command="handleCommand">
                    <span class="el-dropdown-link">
                        {{JSON.parse(user).name}}
                        <i class="el-icon-caret-bottom"></i>
                    </span>
                    <el-dropdown-menu slot="dropdown">
                        <!--                        <a href="https://github.com/lin-xin/vue-manage-system" target="_blank">-->
                        <!--                            <el-dropdown-item>项目仓库</el-dropdown-item>-->
                        <!--                        </a>-->
                        <el-dropdown-item divided command="updatePwd">修改密码</el-dropdown-item>
                        <el-dropdown-item divided command="loginout">退出登录</el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
            </div>
        </div>
        <el-dialog :title="title" :visible.sync="editVisible"  width="30%" id="changepwd">
            <el-form  label-width="70px" >
                <el-form-item label="旧密码"  >
                        <el-input v-model="oldPwd" placeholder="请输入旧密码"></el-input>
                    </el-form-item>
                    <el-form-item label="新密码" >
                        <el-input v-model="newPwd" placeholder="请输入新密码"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editVisible = false">取 消</el-button>
                    <!-- @click="saveEdit"-->
                    <el-button type="primary" @click="updateClick()">确 定</el-button>
                </span>
        </el-dialog>
    </div>
</template>
<script>
    import bus from '../common/bus';
    import { loginout } from '@/api/api';
    import { updatePwd } from '@/api/api';
    import md5 from 'js-md5';
    export default {
        data() {
            return {
                collapse: false,
                fullscreen: false,
                message: 2,
                user: localStorage.getItem('user'),
                oldPwd:'',
                newPwd:'',
                editVisible:false,
                title:"修改密码"
            };
        },
        computed: {
            username() {
                let username = localStorage.getItem('ms_username');
                return username ? username : this.name;
            }
        },
        methods: {
            // 用户名下拉菜单选择事件
            handleCommand(command) {
                if (command == 'loginout') {
                    loginout().then(data => {
                        if (data.returnCode == 200) {
                            localStorage.removeItem('user');
                            localStorage.removeItem('security_token');
                            localStorage.removeItem('ms_username');
                        } else{
                            this.$message.error(data.returnMsg);
                        }
                    });
                    this.$router.push('/login');
                }else if(command == 'updatePwd'){
                    this.editVisible=true;  
                }
            },
            updateClick(){
                this.updatePwd();
            },
            updatePwd(){
                console.log(this.oldPwd)
                console.log(this.newPwd)
                var oldPwd=md5(this.oldPwd);
                var newPwd=md5(this.newPwd);
                updatePwd({
                    oldPwd: oldPwd,
                    newPwd: newPwd
                }).then(res => {
                     if(res.returnCode == 200){
                         this.$message.success(`修改成功`);
                         this.editVisible=false;
                         localStorage.removeItem('user');
                         localStorage.removeItem('security_token');
                         localStorage.removeItem('ms_username');
                     }
			    })
            },
            // 侧边栏折叠
            collapseChage() {
                this.collapse = !this.collapse;
                bus.$emit('collapse', this.collapse);
            },
            // 全屏事件
            handleFullScreen() {
                let element = document.documentElement;
                if (this.fullscreen) {
                    if (document.exitFullscreen) {
                        document.exitFullscreen();
                    } else if (document.webkitCancelFullScreen) {
                        document.webkitCancelFullScreen();
                    } else if (document.mozCancelFullScreen) {
                        document.mozCancelFullScreen();
                    } else if (document.msExitFullscreen) {
                        document.msExitFullscreen();
                    }
                } else {
                    if (element.requestFullscreen) {
                        element.requestFullscreen();
                    } else if (element.webkitRequestFullScreen) {
                        element.webkitRequestFullScreen();
                    } else if (element.mozRequestFullScreen) {
                        element.mozRequestFullScreen();
                    } else if (element.msRequestFullscreen) {
                        // IE11
                        element.msRequestFullscreen();
                    }
                }
                this.fullscreen = !this.fullscreen;
            }
        },
        mounted() {
            if (document.body.clientWidth < 1500) {
                this.collapseChage();
            }
        }
    };
</script>
<style scoped>
    .header {
        position: relative;
        box-sizing: border-box;
        width: 100%;
        height: 70px;
        font-size: 22px;
        color: #fff;
    }

    .collapse-btn {
        float: left;
        padding: 0 21px;
        cursor: pointer;
        line-height: 70px;
    }

    .header .logo {
        float: left;
        width: 250px;
        line-height: 70px;
    }

    .header-right {
        float: right;
        padding-right: 50px;
    }

    .header-user-con {
        display: flex;
        height: 70px;
        align-items: center;
    }

    .btn-fullscreen {
        transform: rotate(45deg);
        margin-right: 5px;
        font-size: 24px;
    }

    .btn-bell,
    .btn-fullscreen {
        position: relative;
        width: 30px;
        height: 30px;
        text-align: center;
        border-radius: 15px;
        cursor: pointer;
    }

    .btn-bell-badge {
        position: absolute;
        right: 0;
        top: -2px;
        width: 8px;
        height: 8px;
        border-radius: 4px;
        background: #f56c6c;
        color: #fff;
    }

    .btn-bell .el-icon-bell {
        color: #fff;
    }

    .user-name {
        margin-left: 10px;
    }

    .user-avator {
        margin-left: 20px;
    }

    .user-avator img {
        display: block;
        width: 40px;
        height: 40px;
        border-radius: 50%;
    }

    .el-dropdown-link {
        color: #fff;
        cursor: pointer;
    }

    .el-dropdown-menu__item {
        text-align: center;
    }
    #changepwd>.el-dialog>.el-dialog__body{
        padding:0px 20px;
    }
</style>
